Laser apparatus and reservoir computing system

a technology of reservoir computing and laser apparatus, which is applied in the field of laser apparatus and reservoir computing system, can solve the problems of increasing the size of laser apparatus and difficulty in realizing a small-scale reservoir computing system

Active Publication Date: 2020-02-13
INT BUSINESS MASCH CORP
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  • Application Information

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Problems solved by technology

However, when the external propagation distance of the external feedback light of the laser apparatus is lengthened, the size of the laser apparatus is increased, and therefore it is difficult to realize a small-scale reservoir computing system.

Method used

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  • Laser apparatus and reservoir computing system
  • Laser apparatus and reservoir computing system
  • Laser apparatus and reservoir computing system

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Embodiment Construction

[0020]Hereinafter, some embodiments of the present invention will be described. The embodiments do not limit the invention according to the claims, and all the combinations of the features described in the embodiments are not necessarily essential to means provided by aspects of the invention.

[0021]FIG. 1 shows an exemplary configuration of a reservoir computing system 100. The reservoir computing system 100 may be an apparatus that performs learning based on input data, output data, and training data. Furthermore, the reservoir computing system 100 may be operable to perform testing and make predictions for output data corresponding to the input data, based on the learning results. The reservoir computing system 100 adjusts weights in the system, in a manner to reduce the difference between output data that is output in response to the input data and training data corresponding to the input data. The reservoir computing system 100 includes a data generator 110, an input layer 120, ...

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Abstract

To realize a reservoir computing system with a small size and reduced learning cost, provided is a laser apparatus including a laser; a feedback waveguide that is operable to feed light output from the laser back to the laser; an optical splitter that is provided in a path of the feedback waveguide and is operable to output a portion of light propagated in the feedback waveguide to outside; and a first ring resonator that is operable to be optically connected to the feedback waveguide, as well as a reservoir computing system including this laser apparatus.

Description

BACKGROUNDTechnical Field[0001]The present invention relates to a laser apparatus and a reservoir computing system.Related Art[0002]A reservoir computing system that uses a recurrent network structure referred to as a reservoir is known as a learning method for handling time-series data, such as for voice recognition and securities predictions. Using a laser apparatus as the reservoir of such a reservoir computing system is also known.[0003]Such a reservoir computing system preferably uses the reservoir to propagate a signal component therein in a complex manner, in order to learn a complex input / output characteristic. It is known that the laser apparatus can realize a complex nonlinear input / output characteristic by using external feedback light obtained by lengthening the external propagation distance of the light. However, when the external propagation distance of the external feedback light of the laser apparatus is lengthened, the size of the laser apparatus is increased, and t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01S5/062H01S5/10H01S5/022H01S5/026G06N20/00G06N3/067G06N3/04H01S5/02H01S5/12H01S5/0683G06N3/08H01S5/14H01S5/065
CPCH01S5/06223G06N3/067G06N3/08H01S5/02252H01S5/1071H01S5/0656H01S5/1039H01S5/142H01S5/021H01S5/1028H01S5/026H01S5/02284H01S5/0683H01S5/1021H01S5/12G06N20/00G06N3/0445G06N3/044H01S5/02251H01S5/02326
Inventor NAKANO, DAIJUTAKEDA, SEIJIYAMANE, TOSHIYUKI
Owner INT BUSINESS MASCH CORP
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